Keyboard for type-writing machines.



C. K'.' SEAR-LE,- KEYBOVAIRQY LOB TYPE 'wanme fMAcam'Es.

Patented wa 23, 1-916;

APPLICATION FILED rm 2 1916 Fig.

' AiTOR/VEY'S Y WITNESSES To all whom it may concern:

CHARLES K. SEARLE, OFIBABYLON, NEW YORK.

KEYBOARD FOR TYPE-WRITING MACHINES.

Be it known that'I, (James K. SEARLE, a citizen of the United States,and a resident of Babylon, in the county of Suffolk and State of. NewYork, have invented a new and Improved'Keyboard for Type-Writinglilachine's, of which the following is a full, clear, andexactdescription.

The object of the invention isto provide a new; and improved keyboardfor typewriting machines arranged to provide a set of auxiliary keyswithout changing the arrangement, location or size of the keys of theoriginal standard keyboard, at the same time enabling the operator toreadily reach the extra. keys without danger of striking the wrong keyand thus insure -more accuracy and speedcn the part of the operator bothas to the use of the original keys and. the set of auxiliary keys.

Another object is to facilitate the learning of the touch system onkeyboards provided with the set of auxiliary keys.

, In order toaccimiplish the desired result,

use is made of a set of standard keys, a back spacer key, a shiftingkey, and a set of auxiliary keys at one end of the keyboard and spacedfrom the said standard keys, the

,saldiback spacer key and the said shifting key being interposed betweenthe said standard keys and the said set of auxiliarykeys.

A practical embodiment of the invention is represented in theaccompanying drawings forming a part of this specification, in,

which similar characters of reference indicate corresponding parts inboth views.

Figure 1 is a plan View of the keyboard of the typewriting machine; andFig. 2 is an end view of the same. 7

The original keyboard of a typewriting' machine embraces the usualstandard keys, a back spacer key, and a shifting key, and it has beenfound desirable to add a set of auxiliary keys for printing fractionsand signs, such as a star, plus and equal marks. This set of auxiliarykeys has been added to the right-hand side of the standard keys and hasbeen an endless source of annoyance to the operator owing to the factthat the close location of the auxiliary keys to the standard keysresulted-in the operator Specification of Letters Patent.

Patented ma 23. tom.

Application filed March 2, 1916. Serial No. 81,633.

striking the wrong key and retarding the speed in using the standardkeys. In "order to overcome this difliculty and to make it possible forthe operator to manipulate the auxiliary keys without dangerofstriking astandard key instead, and to allow the ree use ofthe. standard keyswithout danger of striking an extra key, the following arrangement ismade.

'The keyboard 10 is provided with the usual set of standard keys 11 atthe righthand end of which are located the shifting key 12 and the backs extreme right-hand end of the keyboard 10 is arranged a set of extraOr auxiliary keys ll spaced from the right-hand end of the standard keys11 with the shifting key 12 and the back spacer key 13 interposedbetween the said auxiliary keys 1% and the standard keys 11. Theauxiliary keys 14 are arranged for printing fractions and signs such asa star, plus and equal marks, as plainly indicated in Fig. 1.

It will be noticed that the buttons of the auxiliary keys H are arrangedin a transverse row and are completely separated from the right-handside of the standard keys 11 so that the operator can manipulate thestandard keys with the usual speed ,ahd accuracy and without danger ofaccidentally striking an auxiliary key 14:. In order to make theseparation of the standard keys 11 'and the auxiliary keys 14 morepronounced the shifting key 12 and the back spacer 13 are interposedbetween the two sets of keys. In the manufacture of typewritingmachines, the auxiliary set of keys can be safely added as an operatoris not balked by the extra keysbecause they are in a distinct group bythemselves. It will also be noticed that a beginner learning to operatea typewriter according to the touch system, as now generally taught inall schools, is not liable to be confused by the extra set of keys. I

Having thus described my invention, I claim as new and desire to secureby Letters Patent:

A keyboard fortypewriting machines, comprising a set of standard keys, aback spacer key, a shifting key and .a set of 4 auxiliary keys aifipneend of the keyboard 'name to tlz'i's sp'ecificationin thepresence of angiil' sgapl'eid frpm i s idasfifl an firffikehysflthe twosubscribmgwitnesses.

sal ac spacer ey an 9 sm s 1 mg x I key being interposed between thesaid I 5 standard keys and the said set of auxiliary Witnesses:

keys. 7 v g THEO. G. HosTEu,

In testimony whereofl have signed my PHILIP D. ROLLHAUS'.

